package com.rocky.project.action.model;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Calendar;
import java.util.Random;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.lang.time.DateFormatUtils;

import com.opensymphony.webwork.ServletActionContext;
import com.rocky.project.action.base.BaseAction;
import com.rocky.project.util.FileUtil;

public class ValidateimageAction extends BaseAction {
	/**
	 * 
	 */
	private static final long serialVersionUID = -3510474656970657392L;
	//文件上传start
	private File Filedata;

	private String FiledataFileName;

	private String FiledataContentType;
	
	//文件上传end
	
	@Override
	public String createProcess() throws Exception {

		HttpServletResponse response = ServletActionContext.getResponse();
		//设置页面不缓存

		response.setContentType("image/jpeg");
		response.setHeader("Pragma", "No-cache");
		response.setHeader("Cache-Control", "no-cache");
		response.setDateHeader("Expires", 0);

		//	 在内存中创建图象
		int width = 60, height = 20;
		BufferedImage image = new BufferedImage(width, height,
				BufferedImage.TYPE_INT_RGB);

		// 获取图形上下文
		Graphics g = image.getGraphics();

		//生成随机类
		Random random = new Random();

		// 设定背景色
		g.setColor(getRandColor(200, 250));
		g.fillRect(0, 0, width, height);

		//设定字体
		g.setFont(new Font("Times New Roman", Font.PLAIN, 18));

		//画边框
		g.setColor(new Color(33, 66, 99));
		g.drawRect(0, 0, width - 1, height - 1);

		// 随机产生155条干扰线，使图象中的认证码不易被其它程序探测到
		g.setColor(getRandColor(160, 200));
		for (int i = 0; i < 155; i++) {
			int x = random.nextInt(width);
			int y = random.nextInt(height);
			int xl = random.nextInt(12);
			int yl = random.nextInt(12);
			g.drawLine(x, y, x + xl, y + yl);
		}

		// 取随机产生的认证码(4位数字)
		String sRand = "";
		for (int i = 0; i < 4; i++) {
			String rand = String.valueOf(random.nextInt(10));
			sRand += rand;
			// 将认证码显示到图象中
			g.setColor(new Color(20 + random.nextInt(110), 20 + random
					.nextInt(110), 20 + random.nextInt(110))); //调用函数出来的颜色相同，可能是因为种子太接近，所以只能直接生成
			g.drawString(rand, 13 * i + 6, 16);
		}

		// 将认证码存入SESSION
		HttpSession session = ServletActionContext.getRequest().getSession();
		session.setAttribute("rand", sRand);

		// 图象生效
		g.dispose();

		// 输出图象到页面
		ServletOutputStream out = response.getOutputStream();
		ImageIO.write(image, "JPEG", out);
		out.close();
		return NONE;
	}

	//给定范围获得随机颜色
	private Color getRandColor(int fc, int bc) {
		Random random = new Random();
		if (fc > 255) {
			fc = 255;
		}
		if (bc > 255) {
			bc = 255;
		}
		int r = fc + random.nextInt(bc - fc);
		int g = fc + random.nextInt(bc - fc);
		int b = fc + random.nextInt(bc - fc);
		return new Color(r, g, b);
	}
	private void uploadFile() throws IOException {
		
		String dateStr=DateFormatUtils.format(Calendar.getInstance().getTime(), "yyyyMM");
		String realBaseDir=ServletActionContext.getServletContext().getRealPath("/upload"+"/"+dateStr);
		File baseFile=new File(realBaseDir);
		if(!baseFile.exists()){
			baseFile.mkdir();
		}		
		String lastStr = String.valueOf(Math.random());
		String datetime =DateFormatUtils.format(Calendar.getInstance().getTime(), "yyyyMMddHHmmssms-") + lastStr.substring(lastStr.length()-1);
		String saveName = FileUtil.getDocumentPath(realBaseDir, FiledataFileName, datetime);
		FileUtil.copyFile(Filedata, new File(saveName));		

		
		
	}	
	
	public String uploadImage() throws Exception{
		
		uploadFile();
		ServletActionContext.getResponse().setContentType("text/plain charset=\"utf-8\"");
		ServletActionContext.getResponse().getWriter().write("ok");
		return NONE;
	}

	public File getFiledata() {
		return Filedata;
	}

	public void setFiledata(File filedata) {
		Filedata = filedata;
	}

	public String getFiledataContentType() {
		return FiledataContentType;
	}

	public void setFiledataContentType(String filedataContentType) {
		FiledataContentType = filedataContentType;
	}

	public String getFiledataFileName() {
		return FiledataFileName;
	}

	public void setFiledataFileName(String filedataFileName) {
		FiledataFileName = filedataFileName;
	}
}
